+;;; ps-mule.el --- Provide multi-byte character facility to ps-print.
+
+;; Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+
+;; Author: Vinicius Jose Latorre <vinicius@cpqd.com.br>
+;; Author: Kenichi Handa <handa@etl.go.jp> (multi-byte characters)
+;; Maintainer: Kenichi Handa <handa@etl.go.jp> (multi-byte characters)
+;; Maintainer: Vinicius Jose Latorre <vinicius@cpqd.com.br>
+;; Keywords: wp, print, PostScript, multibyte, mule
+;; Time-stamp: <99/06/24 23:07:11 vinicius>
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; About ps-mule
+;; -------------
+;;
+;; This package is used for ps-print to print multi-byte buffer.
+;;
+;; See also ps-print.el.
+;;
+;;
+;; Printing Multi-byte Buffer
+;; --------------------------
+;;
+;; The variable `ps-multibyte-buffer' specifies the ps-print multi-byte buffer
+;; handling.
+;;
+;; Valid values for `ps-multibyte-buffer' are:
+;;
+;; nil This is the value to use the default settings which
+;; is by default for printing buffer with only ASCII
+;; and Latin characters. The default setting can be
+;; changed by setting the variable
+;; `ps-mule-font-info-database-default' differently.
+;; The initial value of this variable is
+;; `ps-mule-font-info-database-latin' (see
+;; documentation).
+;;
+;; `non-latin-printer' This is the value to use when you have a japanese
+;; or korean PostScript printer and want to print
+;; buffer with ASCII, Latin-1, Japanese (JISX0208 and
+;; JISX0201-Kana) and Korean characters. At present,
+;; it was not tested the Korean characters printing.
+;; If you have a korean PostScript printer, please,
+;; test it.
+;;
+;; `bdf-font' This is the value to use when you want to print
+;; buffer with BDF fonts. BDF fonts include both latin
+;; and non-latin fonts. BDF (Bitmap Distribution
+;; Format) is a format used for distributing X's font
+;; source file. BDF fonts are included in
+;; `intlfonts-1.1' which is a collection of X11 fonts
+;; for all characters supported by Emacs. In order to
+;; use this value, be sure to have installed
+;; `intlfonts-1.1' and set the variable
+;; `bdf-directory-list' appropriately (see ps-bdf.el
+;; for documentation of this variable).
+;;
+;; `bdf-font-except-latin' This is like `bdf-font' except that it is used
+;; PostScript default fonts to print ASCII and Latin-1
+;; characters. This is convenient when you want or
+;; need to use both latin and non-latin characters on
+;; the same buffer. See `ps-font-family',
+;; `ps-header-font-family' and `ps-font-info-database'.
+;;
+;; Any other value is treated as nil.
+;;
+;; The default is nil.
+;;
+;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;;; Code:
+
+(eval-and-compile (require 'ps-print))
+
+
+(require 'ps-vars) ; Common definitions
+
+
+;;;; `ps-multibyte-buffer' definition should be placed in `ps-mule' but due to
+;;;; compilation and customization gripes it was moved to `ps-print-def'.
+;;
+;;(defcustom ps-multibyte-buffer nil
+;; "*Specifies the multi-byte buffer handling.
+;;
+;;Valid values are:
+;;
+;; nil This is the value to use the default settings which
+;; is by default for printing buffer with only ASCII
+;; and Latin characters. The default setting can be
+;; changed by setting the variable
+;; `ps-mule-font-info-database-default' differently.
+;; The initial value of this variable is
+;; `ps-mule-font-info-database-latin' (see
+;; documentation).
+;;
+;; `non-latin-printer' This is the value to use when you have a Japanese
+;; or Korean PostScript printer and want to print
+;; buffer with ASCII, Latin-1, Japanese (JISX0208 and
+;; JISX0201-Kana) and Korean characters. At present,
+;; it was not tested the Korean characters printing.
+;; If you have a korean PostScript printer, please,
+;; test it.
+;;
+;; `bdf-font' This is the value to use when you want to print
+;; buffer with BDF fonts. BDF fonts include both latin
+;; and non-latin fonts. BDF (Bitmap Distribution
+;; Format) is a format used for distributing X's font
+;; source file. BDF fonts are included in
+;; `intlfonts-1.1' which is a collection of X11 fonts
+;; for all characters supported by Emacs. In order to
+;; use this value, be sure to have installed
+;; `intlfonts-1.1' and set the variable
+;; `bdf-directory-list' appropriately (see ps-bdf.el for
+;; documentation of this variable).
+;;
+;; `bdf-font-except-latin' This is like `bdf-font' except that it is used
+;; PostScript default fonts to print ASCII and Latin-1
+;; characters. This is convenient when you want or
+;; need to use both latin and non-latin characters on
+;; the same buffer. See `ps-font-family',
+;; `ps-header-font-family' and `ps-font-info-database'.
+;;
+;;Any other value is treated as nil."
+;; :type '(choice (const non-latin-printer) (const bdf-font)
+;; (const bdf-font-except-latin) (other :tag "nil" nil))
+;; :group 'ps-print-font)
+
+
+;; For Emacs 20.2 and the earlier version.
+(eval-and-compile
+ (if (and (boundp 'mule-version) ; only if mule package is loaded
+ (not (string< mule-version "4.0")))
+ (progn
+ (defalias 'ps-mule-next-point '1+)
+ (defalias 'ps-mule-chars-in-string 'length)
+ (defalias 'ps-mule-string-char 'aref)
+ (defsubst ps-mule-next-index (str i) (1+ i)))
+ (defun ps-mule-next-point (arg)
+ (save-excursion (goto-char arg) (forward-char 1) (point)))
+ (defun ps-mule-chars-in-string (string)
+ (/ (length string)
+ (charset-bytes (char-charset (string-to-char string)))))
+ (defun ps-mule-string-char (string idx)
+ (string-to-char (substring string idx)))
+ (defun ps-mule-next-index (string i)
+ (+ i (charset-bytes (char-charset (string-to-char string)))))))
+
+(defvar ps-mule-font-info-database
+ nil
+ "Alist of charsets with the corresponding font information.
+Each element has the form:
+
+ (CHARSET (FONT-TYPE FONT-SRC FONT-NAME ENCODING BYTES) ...)
+
+Where
+
+CHARSET is a charset (symbol) for this font family,
+
+FONT-TYPE is a font type: normal, bold, italic, or bold-italic.
+
+FONT-SRC is a font source: builtin, ps-bdf, vflib, or nil.
+
+ If FONT-SRC is builtin, FONT-NAME is a buitin PostScript font name.
+
+ If FONT-SRC is bdf, FONT-NAME is a BDF font file name, or a list of
+ alternative font names. To use this font, the external library `ps-bdf'
+ is required.
+
+ If FONT-SRC is vflib, FONT-NAME is the name of a font that VFlib knows.
+ To use this font, the external library `vflib' is required.
+
+ If FONT-SRC is nil, a proper ASCII font in the variable
+ `ps-font-info-database' is used. This is useful for Latin-1 characters.
+
+ENCODING is a coding system to encode a string of characters of CHARSET into a
+proper string matching an encoding of the specified font. ENCODING may be a
+function that does this encoding. In this case, the function is called with
+one argument, the string to encode, and it should return an encoded string.
+
+BYTES specifies how many bytes each character has in the encoded byte
+sequence; it should be 1 or 2.
+
+All multi-byte characters are printed by fonts specified in this database
+regardless of a font family of ASCII characters. The exception is Latin-1
+characters which are printed by the same font as ASCII characters, thus obey
+font family.
+
+See also the variable `ps-font-info-database'.")
+
+(defconst ps-mule-font-info-database-latin
+ '((latin-iso8859-1
+ (normal nil nil iso-latin-1)))
+ "Sample setting of `ps-mule-font-info-database' to use latin fonts.")
+
+(defcustom ps-mule-font-info-database-default
+ ps-mule-font-info-database-latin
+ "*The default setting to use if `ps-multibyte-buffer' is nil."
+ :type '(repeat :tag "Multi-Byte Buffer Database Font Default"
+ (list (symbol :tag "Charset")
+ (repeat :inline t
+ (list (choice :tag "Font Type"
+ (const normal) (const bold)
+ (const italic) (const bold-italic))
+ (choice :tag "Font Source"
+ (const builtin) (const ps-bdf)
+ (const vflib)
+ (other :tag "nil" nil))
+ (list (string :tag "Font Name"))
+ (function :tag "Encoding")
+ (integer :tag "Bytes")))))
+ :group 'ps-print-font)
+
+(defconst ps-mule-font-info-database-ps
+ '((katakana-jisx0201
+ (normal builtin "Ryumin-Light.Katakana" ps-mule-encode-7bit 1)
+ (bold builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1)
+ (bold-italic builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1))
+ (latin-jisx0201
+ (normal builtin "Ryumin-Light.Hankaku" ps-mule-encode-7bit 1)
+ (bold builtin "GothicBBB-Medium.Hankaku" ps-mule-encode-7bit 1))
+ (japanese-jisx0208
+ (normal builtin "Ryumin-Light-H" ps-mule-encode-7bit 2)
+ (bold builtin "GothicBBB-Medium-H" ps-mule-encode-7bit 2))
+ (korean-ksc5601
+ (normal builtin "Munhwa-Regular-KSC-EUC-H" ps-mule-encode-7bit 2)
+ (bold builtin "Munhwa-Bold-KSC-EUC-H" ps-mule-encode-7bit 2))
+ )
+ "Sample setting of the `ps-mule-font-info-database' to use builtin PS font.
+
+Currently, data for Japanese and Korean PostScript printers are listed.")
+
+(defconst ps-mule-font-info-database-bdf
+ '((ascii
+ (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") nil 1)
+ (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") nil 1)
+ (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") nil 1)
+ (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") nil 1))
+ (latin-iso8859-1
+ (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") iso-latin-1 1)
+ (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") iso-latin-1 1)
+ (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") iso-latin-1 1)
+ (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") iso-latin-1 1))
+ (latin-iso8859-2
+ (normal bdf ("lt2-24-etl.bdf" "etl24-latin2.bdf") iso-latin-2 1))
+ (latin-iso8859-3
+ (normal bdf ("lt3-24-etl.bdf" "etl24-latin3.bdf") iso-latin-3 1))
+ (latin-iso8859-4
+ (normal bdf ("lt4-24-etl.bdf" "etl24-latin4.bdf") iso-latin-4 1))
+ (thai-tis620
+ (normal bdf ("thai24.bdf" "thai-24.bdf") thai-tis620 1))
+ (greek-iso8859-7
+ (normal bdf ("grk24-etl.bdf" "etl24-greek.bdf") greek-iso-8bit 1))
+ ;; (arabic-iso8859-6 nil) ; not yet available
+ (hebrew-iso8859-8
+ (normal bdf ("heb24-etl.bdf" "etl24-hebrew.bdf") hebrew-iso-8bit 1))
+ (katakana-jisx0201
+ (normal bdf "12x24rk.bdf" ps-mule-encode-8bit 1))
+ (latin-jisx0201
+ (normal bdf "12x24rk.bdf" ps-mule-encode-7bit 1))
+ (cyrillic-iso8859-5
+ (normal bdf ("cyr24-etl.bdf" "etl24-cyrillic.bdf") cyrillic-iso-8bit 1))
+ (latin-iso8859-9
+ (normal bdf ("lt5-24-etl.bdf" "etl24-latin5.bdf") iso-latin-5 1))
+ (japanese-jisx0208-1978
+ (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2))
+ (chinese-gb2312
+ (normal bdf "gb24st.bdf" ps-mule-encode-7bit 2))
+ (japanese-jisx0208
+ (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2))
+ (korean-ksc5601
+ (normal bdf "hanglm24.bdf" ps-mule-encode-7bit 2))
+ (japanese-jisx0212
+ (normal bdf ("jksp40.bdf" "jisksp40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-1
+ (normal bdf ("cns1-40.bdf" "cns-1-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-2
+ (normal bdf ("cns2-40.bdf" "cns-2-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-big5-1
+ (normal bdf "taipei24.bdf" chinese-big5 2))
+ (chinese-big5-2
+ (normal bdf "taipei24.bdf" chinese-big5 2))
+ (chinese-sisheng
+ (normal bdf ("sish24-etl.bdf" "etl24-sisheng.bdf") ps-mule-encode-7bit 1))
+ (ipa
+ (normal bdf ("ipa24-etl.bdf" "etl24-ipa.bdf") ps-mule-encode-8bit 1))
+ (vietnamese-viscii-lower
+ (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1))
+ (vietnamese-viscii-upper
+ (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1))
+ (arabic-digit
+ (normal bdf ("arab24-0-etl.bdf" "etl24-arabic0.bdf") ps-mule-encode-7bit 1))
+ (arabic-1-column
+ (normal bdf ("arab24-1-etl.bdf" "etl24-arabic1.bdf") ps-mule-encode-7bit 1))
+ ;; (ascii-right-to-left nil) ; not yet available
+ (lao
+ (normal bdf ("lao24-mule.bdf" "mule-lao-24.bdf") lao 1))
+ (arabic-2-column
+ (normal bdf ("arab24-2-etl.bdf" "etl24-arabic2.bdf") ps-mule-encode-7bit 1))
+ (indian-is13194
+ (normal bdf ("isci24-etl.bdf" "mule-iscii-24.bdf") ps-mule-encode-7bit 1))
+ (indian-1-column
+ (normal bdf ("ind1c24-mule.bdf" "mule-indian-1col-24.bdf") ps-mule-encode-7bit 2))
+ (tibetan-1-column
+ (normal bdf ("tib1c24-mule.bdf" "mule-tibmdx-1col-24.bdf") ps-mule-encode-7bit 2))
+ (ethiopic
+ (normal bdf ("ethio24f-uni.bdf" "ethiomx24f-uni.bdf") ps-mule-encode-ethiopic 2))
+ (chinese-cns11643-3
+ (normal bdf ("cns3-40.bdf" "cns-3-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-4
+ (normal bdf ("cns4-40.bdf" "cns-4-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-5
+ (normal bdf ("cns5-40.bdf" "cns-5-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-6
+ (normal bdf ("cns6-40.bdf" "cns-6-40.bdf") ps-mule-encode-7bit 2))
+ (chinese-cns11643-7
+ (normal bdf ("cns7-40.bdf" "cns-7-40.bdf") ps-mule-encode-7bit 2))
+ (indian-2-column
+ (normal bdf ("ind24-mule.bdf" "mule-indian-24.bdf") ps-mule-encode-7bit 2))
+ (tibetan
+ (normal bdf ("tib24-mule.bdf" "mule-tibmdx-24.bdf") ps-mule-encode-7bit 2)))
+ "Sample setting of the `ps-mule-font-info-database' to use BDF fonts.
+BDF (Bitmap Distribution Format) is a format used for distributing X's font
+source file.
+
+Current default value list for BDF fonts is included in `intlfonts-1.1' which is
+a collection of X11 fonts for all characters supported by Emacs.
+
+Using this list as default value to `ps-mule-font-info-database', all characters
+including ASCII and Latin-1 are printed by BDF fonts.
+
+See also `ps-mule-font-info-database-ps-bdf'.")
+
+(defconst ps-mule-font-info-database-ps-bdf
+ (cons (car ps-mule-font-info-database-latin)
+ (cdr (cdr ps-mule-font-info-database-bdf)))
+ "Sample setting of the `ps-mule-font-info-database' to use BDF fonts.
+
+Current default value list for BDF fonts is included in `intlfonts-1.1' which is
+a collection of X11 fonts for all characters supported by Emacs.
+
+Using this list as default value to `ps-mule-font-info-database', all characters
+except ASCII and Latin-1 characters are printed by BDF fonts. ASCII and Latin-1
+characters are printed by PostScript font specified by `ps-font-family' and
+`ps-header-font-family'.
+
+See also `ps-mule-font-info-database-bdf'.")
+
+;; Two typical encoding functions for PostScript fonts.
+
+(defun ps-mule-encode-7bit (string)
+ (ps-mule-encode-bit string 0))
+
+(defun ps-mule-encode-8bit (string)
+ (ps-mule-encode-bit string 128))
+
+(defun ps-mule-encode-bit (string delta)
+ (let* ((dim (charset-dimension (char-charset (string-to-char string))))
+ (len (* (ps-mule-chars-in-string string) dim))
+ (str (make-string len 0))
+ (i 0)
+ (j 0))
+ (if (= dim 1)
+ (while (< j len)
+ (aset str j
+ (+ (nth 1 (split-char (ps-mule-string-char string i))) delta))
+ (setq i (ps-mule-next-index string i)
+ j (1+ j)))
+ (while (< j len)
+ (let ((split (split-char (ps-mule-string-char string i))))
+ (aset str j (+ (nth 1 split) delta))
+ (aset str (1+ j) (+ (nth 2 split) delta))
+ (setq i (ps-mule-next-index string i)
+ j (+ j 2)))))
+ str))
+
+;; Special encoding function for Ethiopic.
+(if (boundp 'mule-version) ; only if mule package is loaded
+ (define-ccl-program ccl-encode-ethio-unicode
+ `(1
+ ((read r2)
+ (loop
+ (if (r2 == ,leading-code-private-22)
+ ((read r0)
+ (if (r0 == ,(charset-id 'ethiopic))
+ ((read r1 r2)
+ (r1 &= 127) (r2 &= 127)
+ (call ccl-encode-ethio-font)
+ (write r1)
+ (write-read-repeat r2))
+ ((write r2 r0)
+ (repeat))))
+ (write-read-repeat r2))))))
+ ;; to avoid compilation gripes
+ (defvar ccl-encode-ethio-unicode nil))
+
+(if (boundp 'mule-version)
+ ;; bound mule-version
+ (defun ps-mule-encode-ethiopic (string)
+ (ccl-execute-on-string (symbol-value 'ccl-encode-ethio-unicode)
+ (make-vector 9 nil)
+ string))
+ ;; unbound mule-version
+ (defun ps-mule-encode-ethiopic (string)
+ string))
+
+;; A charset which we are now processing.
+(defvar ps-mule-current-charset nil)
+
+(defun ps-mule-get-font-spec (charset font-type)
+ "Return FONT-SPEC for printing characters CHARSET with FONT-TYPE.
+FONT-SPEC is a list that has the form:
+
+ (FONT-SRC FONT-NAME ENCODING BYTES)
+
+FONT-SPEC is extracted from `ps-mule-font-info-database'.
+
+See the documentation of `ps-mule-font-info-database' for the meaning of each
+element of the list."
+ (let ((slot (cdr (assq charset ps-mule-font-info-database))))
+ (and slot
+ (cdr (or (assq font-type slot)
+ (and (eq font-type 'bold-italic)
+ (or (assq 'bold slot) (assq 'italic slot)))
+ (assq 'normal slot))))))
+
+;; Functions to access each element of FONT-SPEC.
+(defsubst ps-mule-font-spec-src (font-spec) (car font-spec))
+(defsubst ps-mule-font-spec-name (font-spec) (nth 1 font-spec))
+(defsubst ps-mule-font-spec-encoding (font-spec) (nth 2 font-spec))
+(defsubst ps-mule-font-spec-bytes (font-spec) (nth 3 font-spec))
+
+(defsubst ps-mule-printable-p (charset)
+ "Non-nil if characters in CHARSET is printable."
+ (ps-mule-get-font-spec charset 'normal))
+
+(defconst ps-mule-external-libraries
+ '((builtin nil nil
+ nil nil nil)
+ (bdf ps-bdf nil
+ bdf-generate-prologue bdf-generate-font bdf-generate-glyphs)
+ (pcf nil nil
+ pcf-generate-prologue pcf-generate-font pcf-generate-glyphs)
+ (vflib nil nil
+ vflib-generate-prologue vflib-generate-font vflib-generate-glyphs))
+ "Alist of information of external libraries to support PostScript printing.
+Each element has the form:
+
+ (FONT-SRC FEATURE INITIALIZED-P PROLOGUE-FUNC FONT-FUNC GLYPHS-FUNC)
+
+FONT-SRC is the font source: builtin, bdf, pcf, or vflib.
+
+FEATURE is the feature that provide a facility to handle FONT-SRC. Except for
+`builtin' FONT-SRC, this feature is automatically `require'd before handling
+FONT-SRC. Currently, we only have the feature `ps-bdf'.
+
+INITIALIZED-P indicates if this library is initialized or not.
+
+PROLOGUE-FUNC is a function to generate PostScript code which define several
+PostScript procedures that will be called by FONT-FUNC and GLYPHS-FUNC. It is
+called with no argument, and should return a list of strings.
+
+FONT-FUNC is a function to generate PostScript code which define a new font. It
+is called with one argument FONT-SPEC, and should return a list of strings.
+
+GLYPHS-FUNC is a function to generate PostScript code which define glyphs of
+characters. It is called with three arguments FONT-SPEC, CODE-LIST, and BYTES,
+and should return a list of strings.")
+
+(defun ps-mule-init-external-library (font-spec)
+ "Initialize external library specified by FONT-SPEC for PostScript printing.
+See the documentation of `ps-mule-get-font-spec' for FONT-SPEC's meaning."
+ (let* ((font-src (ps-mule-font-spec-src font-spec))
+ (slot (assq font-src ps-mule-external-libraries)))
+ (or (not font-src)
+ (nth 2 slot)
+ (let ((func (nth 3 slot)))
+ (if func
+ (progn
+ (or (featurep (nth 1 slot)) (require (nth 1 slot)))
+ (ps-output-prologue (funcall func))))
+ (setcar (nthcdr 2 slot) t)))))
+
+;; Cached glyph information of fonts, alist of:
+;; (FONT-NAME ((FONT-TYPE-NUMBER . SCALED-FONT-NAME) ...)
+;; cache CODE0 CODE1 ...)
+(defvar ps-mule-font-cache nil)
+
+(defun ps-mule-generate-font (font-spec charset)
+ "Generate PostScript codes to define a new font in FONT-SPEC for CHARSET."
+ (let* ((font-name (ps-mule-font-spec-name font-spec))
+ (font-name (if (consp font-name) (car font-name) font-name))
+ (font-cache (assoc font-name ps-mule-font-cache))
+ (font-src (ps-mule-font-spec-src font-spec))
+ (func (nth 4 (assq font-src ps-mule-external-libraries)))
+ (scaled-font-name
+ (if (eq charset 'ascii)
+ (format "f%d" ps-current-font)
+ (format "f%02x-%d"
+ (charset-id charset) ps-current-font))))
+ (and func (not font-cache)
+ (ps-output-prologue (funcall func charset font-spec)))
+ (ps-output-prologue
+ (list (format "/%s %f /%s Def%sFontMule\n"
+ scaled-font-name ps-font-size-internal font-name
+ (if (eq ps-mule-current-charset 'ascii) "Ascii" ""))))
+ (if font-cache
+ (setcar (cdr font-cache)
+ (cons (cons ps-current-font scaled-font-name)
+ (nth 1 font-cache)))
+ (setq font-cache (list font-name
+ (list (cons ps-current-font scaled-font-name))
+ 'cache)
+ ps-mule-font-cache (cons font-cache ps-mule-font-cache)))
+ font-cache))
+
+(defun ps-mule-generate-glyphs (font-spec code-list)
+ "Generate PostScript codes which generate glyphs for CODE-LIST of FONT-SPEC."
+ (let* ((font-src (ps-mule-font-spec-src font-spec))
+ (func (nth 5 (assq font-src ps-mule-external-libraries))))
+ (and func
+ (ps-output-prologue
+ (funcall func font-spec code-list
+ (ps-mule-font-spec-bytes font-spec))))))
+
+(defun ps-mule-prepare-font (font-spec string charset &optional no-setfont)
+ "Generate PostScript codes to print STRING of CHARSET by font FONT-SPEC.
+
+The generated code is inserted on prologue part except the code that sets the
+current font (using PostScript procedure `FM').
+
+If optional arg NO-SETFONT is non-nil, don't generate the code for setting the
+current font."
+ (let* ((font-name (ps-mule-font-spec-name font-spec))
+ (font-name (if (consp font-name) (car font-name) font-name))
+ (font-cache (assoc font-name ps-mule-font-cache)))
+ (or (and font-cache (assq ps-current-font (nth 1 font-cache)))
+ (setq font-cache (ps-mule-generate-font font-spec charset)))
+ (or no-setfont
+ (let ((new-font (cdr (assq ps-current-font (nth 1 font-cache)))))
+ (or (equal new-font ps-last-font)
+ (progn
+ (ps-output (format "/%s FM\n" new-font))
+ (setq ps-last-font new-font)))))
+ (if (nth 5 (assq (ps-mule-font-spec-src font-spec)
+ ps-mule-external-libraries))
+ ;; We have to generate PostScript codes which define glyphs.
+ (let* ((cached-codes (nthcdr 2 font-cache))
+ (bytes (ps-mule-font-spec-bytes font-spec))
+ (len (length string))
+ (i 0)
+ newcodes code)
+ (while (< i len)
+ (setq code (if (= bytes 1)
+ (aref string i)
+ (+ (* (aref string i) 256) (aref string (1+ i)))))
+ (or (memq code cached-codes)
+ (progn
+ (setq newcodes (cons code newcodes))
+ (setcdr cached-codes (cons code (cdr cached-codes)))))
+ (setq i (+ i bytes)))
+ (and newcodes
+ (ps-mule-generate-glyphs font-spec newcodes))))))
+
+;;;###autoload
+(defun ps-mule-prepare-ascii-font (string)
+ "Setup special ASCII font for STRING.
+STRING should contain only ASCII characters."
+ (let ((font-spec
+ (ps-mule-get-font-spec
+ 'ascii
+ (car (nth ps-current-font (ps-font-alist 'ps-font-for-text))))))
+ (and font-spec
+ (ps-mule-prepare-font font-spec string 'ascii))))
+
+;;;###autoload
+(defun ps-mule-set-ascii-font ()
+ (unless (eq ps-mule-current-charset 'ascii)
+ (ps-set-font ps-current-font)
+ (setq ps-mule-current-charset 'ascii)))
+
+;; List of charsets of multi-byte characters in a text being printed.
+;; If the text doesn't contain any multi-byte characters (i.e. only ASCII),
+;; the value is nil.
+(defvar ps-mule-charset-list nil)
+
+;; This is a PostScript code inserted in the header of generated PostScript.
+(defconst ps-mule-prologue
+ "%%%% Start of Mule Section
+
+%% Working dictionary for general use.
+/MuleDict 10 dict def
+
+%% Adjust /RelativeCompose properly by checking /BaselineOffset.
+/AdjustRelativeCompose { % fontdict |- fontdict
+ dup length 2 add dict begin
+ { 1 index /FID ne { def } { pop pop } ifelse } forall
+ currentdict /BaselineOffset known {
+ BaselineOffset false eq { /BaselinfOffset 0 def } if
+ } {
+ /BaselineOffset 0 def
+ } ifelse
+ currentdict /RelativeCompose known not {
+ /RelativeCompose [ 0 0.1 ] def
+ } {
+ RelativeCompose false ne {
+ [ BaselineOffset RelativeCompose BaselineOffset add
+ [ FontMatrix { FontSize div } forall ] transform ]
+ /RelativeCompose exch def
+ } if
+ } ifelse
+ currentdict
+ end
+} def
+
+%% Define already scaled font for non-ASCII character sets.
+/DefFontMule { % fontname size basefont |- --
+ findfont exch scalefont AdjustRelativeCompose definefont pop
+} bind def
+
+%% Define already scaled font for ASCII character sets.
+/DefAsciiFontMule { % fontname size basefont |-
+ MuleDict begin
+ findfont dup /Encoding get /ISOLatin1Encoding exch def
+ exch scalefont AdjustRelativeCompose reencodeFontISO
+ end
+} def
+
+%% Set the specified non-ASCII font to use. It doesn't install
+%% Ascent, etc.
+/FM { % fontname |- --
+ findfont setfont
+} bind def
+
+%% Show vacant box for characters which don't have appropriate font.
+/SB { % count column |- --
+ SpaceWidth mul /w exch def
+ 1 exch 1 exch { %for
+ pop
+ gsave
+ 0 setlinewidth
+ 0 Descent rmoveto w 0 rlineto
+ 0 LineHeight rlineto w neg 0 rlineto closepath stroke
+ grestore
+ w 0 rmoveto
+ } for
+} bind def
+
+%% Flag to tell if we are now handling a composite character. This is
+%% defined here because both composite character handler and bitmap font
+%% handler require it.
+/Cmpchar false def
+
+%%%% End of Mule Section
+
+"
+ "PostScript code for printing multi-byte characters.")
+
+(defvar ps-mule-prologue-generated nil)
+
+(defun ps-mule-prologue-generated ()
+ (unless ps-mule-prologue-generated
+ (ps-output-prologue ps-mule-prologue)
+ (setq ps-mule-prologue-generated t)))
+
+(defun ps-mule-find-wrappoint (from to char-width)
+ "Find the longest sequence which is printable in the current line.
+
+The search starts at FROM and goes until TO. It is assumed that all characters
+between FROM and TO belong to a charset in `ps-mule-current-charset'.
+
+CHAR-WIDTH is the average width of ASCII characters in the current font.
+
+Returns the value:
+
+ (ENDPOS . RUN-WIDTH)
+
+Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of
+the sequence."
+ (if (eq ps-mule-current-charset 'composition)
+ ;; We must draw one char by one.
+ (let ((run-width (* (char-width (char-after from)) char-width)))
+ (if (> run-width ps-width-remaining)
+ (cons from ps-width-remaining)
+ (cons (ps-mule-next-point from) run-width)))
+ ;; We assume that all characters in this range have the same width.
+ (setq char-width (* char-width (charset-width ps-mule-current-charset)))
+ (let ((run-width (* (chars-in-region from to) char-width)))
+ (if (> run-width ps-width-remaining)
+ (cons (min to
+ (save-excursion
+ (goto-char from)
+ (forward-point
+ (truncate (/ ps-width-remaining char-width)))))
+ ps-width-remaining)
+ (cons to run-width)))))
+
+;;;###autoload
+(defun ps-mule-plot-string (from to &optional bg-color)
+ "Generate PostScript code for ploting characters in the region FROM and TO.
+
+It is assumed that all characters in this region belong to the same charset.
+
+Optional argument BG-COLOR specifies background color.
+
+Returns the value:
+
+ (ENDPOS . RUN-WIDTH)
+
+Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of
+the sequence."
+ (setq ps-mule-current-charset (charset-after from))
+ (let* ((wrappoint (ps-mule-find-wrappoint
+ from to (ps-avg-char-width 'ps-font-for-text)))
+ (to (car wrappoint))
+ (font-type (car (nth ps-current-font
+ (ps-font-alist 'ps-font-for-text))))
+ (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type))
+ (string (buffer-substring-no-properties from to)))
+ (cond
+ ((= from to)
+ ;; We can't print any more characters in the current line.
+ nil)
+
+ (font-spec
+ ;; We surely have a font for printing this character set.
+ (ps-output-string (ps-mule-string-encoding font-spec string))
+ (ps-output " S\n"))
+
+ ((eq ps-mule-current-charset 'latin-iso8859-1)
+ ;; Latin-1 can be printed by a normal ASCII font.
+ (ps-output-string (ps-mule-string-ascii string))
+ (ps-output " S\n"))
+
+ ((eq ps-mule-current-charset 'composition)
+ (let* ((ch (char-after from))
+ (width (char-width ch))
+ (ch-list (decompose-composite-char ch 'list t)))
+ (if (consp (nth 1 ch-list))
+ (ps-mule-plot-rule-cmpchar ch-list width font-type)
+ (ps-mule-plot-cmpchar ch-list width t font-type))))
+
+ (t
+ ;; No way to print this charset. Just show a vacant box of an
+ ;; appropriate width.
+ (ps-output (format "%d %d SB\n"
+ (length string)
+ (if (eq ps-mule-current-charset 'composition)
+ (char-width (char-after from))
+ (charset-width ps-mule-current-charset))))))
+ wrappoint))
+
+;; Composite font support
+
+(defvar ps-mule-cmpchar-prologue-generated nil)
+
+(defconst ps-mule-cmpchar-prologue
+ "%%%% Composite character handler
+/CmpcharWidth 0 def
+/CmpcharRelativeCompose 0 def
+/CmpcharRelativeSkip 0.4 def
+
+%% Get a bounding box (relative to currentpoint) of STR.
+/GetPathBox { % str |- --
+ gsave
+ currentfont /FontType get 3 eq { %ifelse
+ stringwidth pop pop
+ } {
+ currentpoint /y exch def /x exch def
+ false charpath flattenpath pathbbox
+ y sub /URY exch def x sub /URX exch def
+ y sub /LLY exch def x sub /LLX exch def
+ } ifelse
+ grestore
+} bind def
+
+%% Beginning of composite char.
+/BC { % str xoff width |- --
+ /Cmpchar true def
+ /CmpcharWidth exch def
+ currentfont /RelativeCompose known {
+ /CmpcharRelativeCompose currentfont /RelativeCompose get def
+ } {
+ /CmpcharRelativeCompose false def
+ } ifelse
+ /bgsave bg def /bgcolorsave bgcolor def
+ /Effectsave Effect def
+ gsave % Reflect effect only at first
+ /Effect Effect 1 2 add 4 add 16 add and def
+ /f0 findfont setfont ( ) 0 CmpcharWidth getinterval S
+ grestore
+ /Effect Effectsave 8 32 add and def % enable only shadow and outline
+ false BG
+ gsave
+ SpaceWidth mul 0 rmoveto dup GetPathBox S
+ /RIGHT currentpoint pop def
+ grestore
+ /y currentpoint exch pop def
+ /HIGH URY y add def /LOW LLY y add def
+} bind def
+
+%% End of composite char.
+/EC { % -- |- --
+ /bg bgsave def /bgcolor bgcolorsave def
+ /Effect Effectsave def
+ /Cmpchar false def
+ CmpcharRelativeCompose false eq {
+ CmpcharWidth SpaceWidth mul 0 rmoveto
+ } {
+ RIGHT currentpoint exch pop moveto
+ } ifelse
+} bind def
+
+%% Rule base composition
+/RBC { % str xoff gref nref |- --
+ /nref exch def /gref exch def
+ gsave
+ SpaceWidth mul 0 rmoveto
+ dup
+ GetPathBox
+ [ HIGH currentpoint exch pop LOW HIGH LOW add 2 div ] gref get
+ [ URY LLY sub LLY neg 0 URY LLY sub 2 div ] nref get
+ sub /btm exch def
+ /top btm URY LLY sub add def
+ top HIGH gt { /HIGH top def } if
+ btm LOW lt { /LOW btm def } if
+ currentpoint pop btm LLY sub moveto
+ S
+ grestore
+ /CmpcharRelativeCompose false def
+} bind def
+
+%% Relative composition
+/RLC { % str |- --
+ gsave
+ dup GetPathBox
+ LLX 0 lt { RIGHT currentpoint exch pop moveto } if
+ CmpcharRelativeCompose type /arraytype eq {
+ LLY CmpcharRelativeCompose 1 get ge { % compose on top
+ currentpoint pop HIGH LLY sub CmpcharRelativeSkip add moveto
+ /HIGH HIGH URY LLY sub add CmpcharRelativeSkip add def
+ } { URY CmpcharRelativeCompose 0 get le { % compose under bottom
+ currentpoint pop LOW URY sub CmpcharRelativeSkip sub moveto
+ /LOW LOW URY LLY sub sub CmpcharRelativeSkip sub def
+ } {
+ /y currentpoint exch pop def
+ y URY add dup HIGH gt { /HIGH exch def } { pop } ifelse
+ y LLY add dup LOW lt { /LOW exch def } { pop } ifelse
+ } ifelse } ifelse } if
+ S
+ grestore
+} bind def
+%%%% End of composite character handler
+
+"
+ "PostScript code for printing composite characters.")
+
+(defun ps-mule-plot-rule-cmpchar (ch-rule-list total-width font-type)
+ (let ((leftmost 0.0)
+ (rightmost (float (char-width (car ch-rule-list))))
+ (the-list (cons '(3 . 3) ch-rule-list))
+ cmpchar-elements)
+ (while the-list
+ (let* ((this (car the-list))
+ (gref (car this))
+ (nref (cdr this))
+ ;; X-axis info (0:left, 1:center, 2:right)
+ (gref-x (% gref 3))
+ (nref-x (% nref 3))
+ ;; Y-axis info (0:top, 1:base, 2:bottom, 3:center)
+ (gref-y (if (= gref 4) 3 (/ gref 3)))
+ (nref-y (if (= nref 4) 3 (/ nref 3)))
+ (char (car (cdr the-list)))
+ (width (float (char-width char)))
+ left)
+ (setq left (+ leftmost
+ (* (- rightmost leftmost) gref-x 0.5)
+ (- (* nref-x width 0.5)))
+ cmpchar-elements (cons (list char left gref-y nref-y)
+ cmpchar-elements)
+ leftmost (min left leftmost)
+ rightmost (max (+ left width) rightmost)
+ the-list (nthcdr 2 the-list))))
+ (if (< leftmost 0)
+ (let ((the-list cmpchar-elements)
+ elt)
+ (while the-list
+ (setq elt (car the-list)
+ the-list (cdr the-list))
+ (setcar (cdr elt) (- (nth 1 elt) leftmost)))))
+ (ps-mule-plot-cmpchar (nreverse cmpchar-elements)
+ total-width nil font-type)))
+
+(defun ps-mule-plot-cmpchar (elements total-width relativep font-type)
+ (let* ((elt (car elements))
+ (ch (if relativep elt (car elt))))
+ (ps-output-string (ps-mule-prepare-cmpchar-font ch font-type))
+ (ps-output (format " %d %d BC "
+ (if relativep 0 (nth 1 elt))
+ total-width))
+ (while (setq elements (cdr elements))
+ (setq elt (car elements)
+ ch (if relativep elt (car elt)))
+ (ps-output-string (ps-mule-prepare-cmpchar-font ch font-type))
+ (ps-output (if relativep
+ " RLC "
+ (format " %d %d %d RBC "
+ (nth 1 elt) (nth 2 elt) (nth 3 elt))))))
+ (ps-output "EC\n"))
+
+(defun ps-mule-prepare-cmpchar-font (char font-type)
+ (let* ((ps-mule-current-charset (char-charset char))
+ (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type)))
+ (cond (font-spec
+ (ps-mule-string-encoding font-spec (char-to-string char)))
+
+ ((eq ps-mule-current-charset 'latin-iso8859-1)
+ (ps-mule-string-ascii (char-to-string char)))
+
+ (t
+ ;; No font for CHAR.
+ (ps-set-font ps-current-font)
+ " "))))
+
+(defun ps-mule-string-ascii (str)
+ (ps-set-font ps-current-font)
+ (string-as-unibyte (encode-coding-string str 'iso-latin-1)))
+
+(defun ps-mule-string-encoding (font-spec str)
+ (let ((encoding (ps-mule-font-spec-encoding font-spec)))
+ (setq str
+ (string-as-unibyte
+ (cond ((coding-system-p encoding)
+ (encode-coding-string str encoding))
+ ((functionp encoding)
+ (funcall encoding str))
+ (encoding
+ (error "Invalid coding system or function: %s" encoding))
+ (t
+ str))))
+ (if (ps-mule-font-spec-src font-spec)
+ (ps-mule-prepare-font font-spec str ps-mule-current-charset)
+ (ps-set-font ps-current-font))
+ str))
+
+;; Bitmap font support
+
+(defvar ps-mule-bitmap-prologue-generated nil)
+
+(defconst ps-mule-bitmap-prologue
+ "%%%% Bitmap font handler
+
+/str7 7 string def % working area
+
+%% We grow the dictionary one bunch (1024 entries) by one.
+/BitmapDictArray 256 array def
+/BitmapDictLength 1024 def
+/BitmapDictIndex -1 def
+
+/NewBitmapDict { % -- |- --
+ /BitmapDictIndex BitmapDictIndex 1 add def
+ BitmapDictArray BitmapDictIndex BitmapDictLength dict put
+} bind def
+
+%% Make at least one dictionary.
+NewBitmapDict
+
+/AddBitmap { % gloval-charname bitmap-data |- --
+ BitmapDictArray BitmapDictIndex get
+ dup length BitmapDictLength ge {
+ pop
+ NewBitmapDict
+ BitmapDictArray BitmapDictIndex get
+ } if
+ 3 1 roll put
+} bind def
+
+/GetBitmap { % gloval-charname |- bitmap-data
+ 0 1 BitmapDictIndex { BitmapDictArray exch get begin } for
+ load
+ 0 1 BitmapDictIndex { pop end } for
+} bind def
+
+%% Return a global character name which can be used as a key in the
+%% bitmap dictionary.
+/GlobalCharName { % fontidx code1 code2 |- gloval-charname
+ exch 256 mul add exch 65536 mul add 16777216 add 16 str7 cvrs 0 66 put
+ str7 cvn
+} bind def
+
+%% Character code holder for a 2-byte character.
+/FirstCode -1 def
+
+%% Glyph rendering procedure
+/BuildGlyphCommon { % fontdict charname |- --
+ 1 index /FontDimension get 1 eq { /FirstCode 0 store } if
+ NameIndexDict exch get % STACK: fontdict charcode
+ FirstCode 0 lt { %ifelse
+ %% This is the first byte of a 2-byte character. Just
+ %% remember it for the moment.
+ /FirstCode exch store
+ pop
+ 0 0 setcharwidth
+ } {
+ 1 index /FontSize get /size exch def
+ 1 index /FontSpaceWidthRatio get /ratio exch def
+ 1 index /FontIndex get exch FirstCode exch
+ GlobalCharName GetBitmap /bmp exch def
+ %% bmp == [ DWIDTH BBX-WIDTH BBX-HEIGHT BBX-XOFF BBX-YOFF BITMAP ]
+ Cmpchar { %ifelse
+ /FontMatrix get [ exch { size div } forall ] /mtrx exch def
+ bmp 3 get bmp 4 get mtrx transform
+ /LLY exch def /LLX exch def
+ bmp 1 get bmp 3 get add bmp 2 get bmp 4 get add mtrx transform
+ /URY exch def /URX exch def
+ } {
+ pop
+ } ifelse
+ /FirstCode -1 store
+
+ bmp 0 get SpaceWidthRatio ratio div mul size div 0 % wx wy
+ setcharwidth % We can't use setcachedevice here.
+
+ bmp 1 get 0 gt bmp 2 get 0 gt and {
+ bmp 1 get bmp 2 get % width height
+ true % polarity
+ [ size 0 0 size neg bmp 3 get neg bmp 2 get bmp 4 get add ] % matrix
+ bmp 5 1 getinterval cvx % datasrc
+ imagemask
+ } if
+ } ifelse
+} bind def
+
+/BuildCharCommon {
+ 1 index /Encoding get exch get
+ 1 index /BuildGlyph get exec
+} bind def
+
+%% Bitmap font creater
+
+%% Common Encoding shared by all bitmap fonts.
+/EncodingCommon 256 array def
+%% Mapping table from character name to character code.
+/NameIndexDict 256 dict def
+0 1 255 { %for
+ /idx exch def
+ /idxname idx 256 add 16 (XXX) cvrs dup 0 67 put cvn def % `C' == 67
+ EncodingCommon idx idxname put
+ NameIndexDict idxname idx put
+} for
+
+/GlobalFontIndex 0 def
+
+%% fontname dim col fontsize relative-compose baseline-offset fbbx |- --
+/BitmapFont {
+ 15 dict begin
+ /FontBBox exch def
+ /BaselineOffset exch def
+ /RelativeCompose exch def
+ /FontSize exch def
+ /FontBBox [ FontBBox { FontSize div } forall ] def
+ FontBBox 2 get FontBBox 0 get sub exch div
+ /FontSpaceWidthRatio exch def
+ /FontDimension exch def
+ /FontIndex GlobalFontIndex def
+ /FontType 3 def
+ /FontMatrix matrix def
+ /Encoding EncodingCommon def
+ /BuildGlyph { BuildGlyphCommon } def
+ /BuildChar { BuildCharCommon } def
+ currentdict end
+ definefont pop
+ /GlobalFontIndex GlobalFontIndex 1 add def
+} bind def
+
+%% Define a new bitmap font.
+%% fontname dim col fontsize relative-compose baseline-offset fbbx |- --
+/NF {
+ /fbbx exch def
+ %% Convert BDF's FontBoundingBox to PostScript's FontBBox
+ [ fbbx 2 get fbbx 3 get
+ fbbx 2 get fbbx 0 get add fbbx 3 get fbbx 1 get add ]
+ BitmapFont
+} bind def
+
+%% Define a glyph for the specified font and character.
+/NG { % fontname charcode bitmap-data |- --
+ /bmp exch def
+ exch findfont dup /BaselineOffset get bmp 4 get add bmp exch 4 exch put
+ /FontIndex get exch
+ dup 256 idiv exch 256 mod GlobalCharName
+ bmp AddBitmap
+} bind def
+%%%% End of bitmap font handler
+
+")
+
+;; External library support.
+
+;; The following three functions are to be called from external
+;; libraries which support bitmap fonts (e.g. `bdf') to get
+;; appropriate PostScript code.
+
+(defun ps-mule-generate-bitmap-prologue ()
+ (unless ps-mule-bitmap-prologue-generated
+ (setq ps-mule-bitmap-prologue-generated t)
+ (list ps-mule-bitmap-prologue)))
+
+(defun ps-mule-generate-bitmap-font (&rest args)
+ (list (apply 'format "/%s %d %d %f %S %d %S NF\n" args)))
+
+(defun ps-mule-generate-bitmap-glyph (font-name code dwidth bbx bitmap)
+ (format "/%s %d [ %d %d %d %d %d <%s> ] NG\n"
+ font-name code
+ dwidth (aref bbx 0) (aref bbx 1) (aref bbx 2) (aref bbx 3)
+ bitmap))
+
+;; Mule specific initializers.
+
+;;;###autoload
+(defun ps-mule-initialize ()
+ "Initialize global data for printing multi-byte characters."
+ (setq ps-mule-font-cache nil
+ ps-mule-prologue-generated nil
+ ps-mule-cmpchar-prologue-generated nil
+ ps-mule-bitmap-prologue-generated nil)
+ (mapcar `(lambda (x) (setcar (nthcdr 2 x) nil))
+ ps-mule-external-libraries))
+
+;;;###autoload
+(defun ps-mule-begin-job (from to)
+ "Start printing job for multi-byte chars between FROM and TO.
+This checks if all multi-byte characters in the region are printable or not."
+ (setq ps-mule-charset-list nil
+ ps-mule-font-info-database
+ (cond ((eq ps-multibyte-buffer 'non-latin-printer)
+ ps-mule-font-info-database-ps)
+ ((eq ps-multibyte-buffer 'bdf-font)
+ ps-mule-font-info-database-bdf)
+ ((eq ps-multibyte-buffer 'bdf-font-except-latin)
+ ps-mule-font-info-database-ps-bdf)
+ (t
+ ps-mule-font-info-database-default)))
+ (and (boundp 'enable-multibyte-characters)
+ enable-multibyte-characters
+ ;; Initialize `ps-mule-charset-list'. If some characters aren't
+ ;; printable, warn it.
+ (let ((charsets (find-charset-region from to)))
+ (setq charsets (delq 'ascii (delq 'unknown (delq nil charsets)))
+ ps-mule-charset-list charsets)
+ (save-excursion
+ (goto-char from)
+ (and (search-forward "\200" to t)
+ (setq ps-mule-charset-list
+ (cons 'composition ps-mule-charset-list))))
+ (while charsets
+ (setq charsets
+ (cond
+ ((or (eq (car charsets) 'composition)
+ (ps-mule-printable-p (car charsets)))
+ (cdr charsets))
+ ((y-or-n-p
+ "Font for some characters not found, continue anyway? ")
+ nil)
+ (t
+ (error "Printing cancelled")))))))
+
+ (setq ps-mule-current-charset 'ascii)
+
+ (if ps-mule-charset-list
+ (let ((the-list ps-mule-charset-list)
+ font-spec elt)
+ (ps-mule-prologue-generated)
+ ;; If external functions are necessary, generate prologues for them.
+ (while the-list
+ (setq elt (car the-list)
+ the-list (cdr the-list))
+ (cond ((and (eq elt 'composition)
+ (not ps-mule-cmpchar-prologue-generated))
+ (ps-output-prologue ps-mule-cmpchar-prologue)
+ (setq ps-mule-cmpchar-prologue-generated t))
+ ((setq font-spec (ps-mule-get-font-spec elt 'normal))
+ (ps-mule-init-external-library font-spec))))))
+
+ ;; If ASCII font is also specified in ps-mule-font-info-database,
+ ;; use it istead of what specified in ps-font-info-database.
+ (let ((font-spec (ps-mule-get-font-spec 'ascii 'normal)))
+ (if font-spec
+ (progn
+ (ps-mule-prologue-generated)
+ (ps-mule-init-external-library font-spec)
+ (let ((font (ps-font-alist 'ps-font-for-text))
+ (ps-current-font 0))
+ (while font
+ ;; Be sure to download a glyph for SPACE in advance.
+ (ps-mule-prepare-font (ps-mule-get-font-spec 'ascii (car font))
+ " " 'ascii 'no-setfont)
+ (setq font (cdr font)
+ ps-current-font (1+ ps-current-font)))))))
+
+ (if ps-mule-charset-list
+ ;; We must change this regexp for multi-byte buffer.
+ (setq ps-control-or-escape-regexp
+ (cond ((eq ps-print-control-characters '8-bit)
+ "[^\040-\176]")
+ ((eq ps-print-control-characters 'control-8-bit)
+ (string-as-multibyte "[^\040-\176\240-\377]"))
+ ((eq ps-print-control-characters 'control)
+ (string-as-multibyte "[^\040-\176\200-\377]"))
+ (t (string-as-multibyte "[^\000-\011\013\015-\377]"))))))
+
+;;;###autoload
+(defun ps-mule-begin-page ()
+ (setq ps-mule-current-charset 'ascii))
+
+
+(provide 'ps-mule)
+
+;;; ps-mule.el ends here